. >> on capitol hill today republican senator lindsay gram blamed the obama administration because neither the fbi nor cia knew that tammerlan had been advocating jihad against the united states for months online. >> we were unable to connect the dots and pick that up. the rest is history. between benghazi and boston, our systems are failing and we're going backward. >> the fbi searched a landfill today looking for explosives the suspects might have used for practice. >> bart taking a look at emergency preparedness. the police chief briefed the board on steps taken after the bombings and what still needs to be done. >> this exercise was just a drill but highlights the very real threat to the transportation system. the chief says the day of the bombings every officer was on the train. >> this is actually a good chance for us to practice. >> rainy linked in after the attacks. >> a confrons call and the traigs coordinates throughout the nation. >> the board asked for a review of possible gaps and empty station agent booths and with the camera system. there are now a thousand cameras with reco